UPDATE: Ryan Murphy tells
EW that the fourth season of "American Horror Story" will take place in 1950 and that star
Jessica Lange is working on her German accent.

"American Horror Story" is currently bringing its third season,
"Coven," to a close on FX. Creator
Ryan Murphy has so far been mum about what Season 4 will look like, but FX Networks CEO
John Landgraf dropped a few juicy details at the 2014 TCA press tour panel Tuesday (Jan. 14).

"I think it'll probably be a period piece again, I don't think it'll be contemporary," says Landgraf. "I know that most of the current cast will be returning in some form, though I don't know what characters they'll be playing. I'm waiting for [Murphy] to tell me. ... Every season has an opportunity to sell a new setting and new characters and a new tone to the audience."

Landgraf adds that Murphy basically has the leeway to take the show in any direction he wants.

"Ryan has virtual carte blanche at this point to do whatever he wants to do," says Landgraf. "That really is his baby. While I and other people in the company still read every script and still watch every rough cut and still give the occasional note, I have to say we don't really have very much input. I suppose we could force ourselves to have input, but when I look at the inventiveness and the quality of what he's done for three seasons is I don't really see the need."

"American Horror Story" Season 4 will premiere in fall 2014, if it follows the pattern of the previous three seasons.